reading file

[butterfly21]

Hi i have a very simple code to read values from a file. However It isnt taking in all the values correctly.

#include <math.h>
#include <stdio.h>

int i[100000000];
int t,r;
  
main()
{
  FILE *dat;
  dat = fopen("ordered.dat","r");

r=1;
  for(r=1;r<50;r++)
  {
    fscanf(dat,"%d",&i[r]);
    printf("%d\n",i[r]);

  }
  
}

Here are a list of the values i am using to read:

56
1516
211516
31121516
4112131516
511213141516
611213142516
512213141526
413213142516
412223241516
314213241516
412223241516
314213241516
412223241516
314213241516
412223241516

Would really appreciate any help you can give me, on why i am not getting these values when i read the file!
Thanks

[kirubanantham]

Hai ,
You just try this code,
#include <math.h>
#include <stdio.h>

double i[100];
int t,r;

main()
{
FILE *dat;
dat = fopen("ordered. dat","r+");

r=0;
for(r=0;r<50;r+ +)
{
fscanf(dat,"%d" ,&i[r]);
printf("%d\n",i[r]);
}
fclose( dat );
}
You are declared variable i as an integer first but when you are reading you are using type specifier as a double.

Cheers,
Kiruba.K

[svsandeep]

Hi i have a very simple code to read values from a file. However It isnt taking in all the values correctly.

#include <math.h>
#include <stdio.h>

int i[100000000];
int t,r;
  
main()
{
  FILE *dat;
  dat = fopen("ordered.dat","r");

r=1;
  for(r=1;r<50;r++)
  {
    fscanf(dat,"%d",&i[r]);
    printf("%d\n",i[r]);

  }
  
}

Here are a list of the values i am using to read:

56
1516
211516
31121516
4112131516
511213141516
611213142516
512213141526
413213142516
412223241516
314213241516
412223241516
314213241516
412223241516
314213241516
412223241516

Would really appreciate any help you can give me, on why i am not getting these values when i read the file!
Thanks

Dude,

For an integer, typical size is 4 bytes which means it can store as much as 4,294,967,296./* calculated as 2 power (8*4) */ This doesn't mean you can store from 0 to 4,294,967,296, instead you can store from -2147483648 to +2147483647.

Now if you make a attempt to store 2147483648 in your program it will take as
-2147483648 and for 2147483648 --> -2147483647 and so on..

I hope this answered your question.

Regards,
Shaggy@FTF